It appears that last week’s guilty plea by Monica Conyers was not the end of the revelations of possible corruption, and the problems may go beyond the Detroit City Councilwoman and implicate her husband, longtime U.S. Rep. John Conyers, as well. The Detroit Free Press reports on new accusations coming from former Conyers aide Sam Riddle:

The aide, Sam Riddle, said Conyers even helped draft a letter sent by her husband, Congressman John Conyers Jr., D-Mich., to help a man with whom she had financial ties. It is unclear whether John Conyers knew of his wife’s alleged link to the businessman.

In that deal, Riddle said, Monica Conyers arranged for Riddle to get a $20,000 contract with Greektown entrepreneur Dimitrios (Jim) Papas in about 2007. Riddle said Papas hired him for crisis consulting and political advising — but he was never asked to do any work. She then demanded $10,000 of that money as a “finder’s fee,” Riddle said.

At some point after Papas paid him, Riddle said, John Conyers sent a letter to the U.S. Environmental Protection Agency in support of a controversial hazardous waste injection well in Romulus that one of Papas’ companies was seeking to operate.

The U.S. Attorney in charge of the investigation said last week that they had no evidence that John Conyers had been “knowingly or intentionally involved” in his wife’s corruption, but he also said that this is only the beginning of the indictments and that the corruption went much deeper than just Monica Conyers. With Riddle now on the record implicating the longtime Congressman, John Conyers finds himself clearly in the crosshairs of the investigation.